Printer reporting multiple errors after print but it prints fine?
 
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Printer reporting multiple errors after print but it prints fine?  

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graemesmith1960
(@graemesmith1960)
Eminent Member
Printer reporting multiple errors after print but it prints fine?

My Mk4 with MMU3 has been running flawlessly for a while but recently after every print it shows an error screen.  The message is something like "The printer has detected multiple load and unload errors.  Suggest you check your Nextruder Main Plate" and then gives a link to Prusa.io/mmu-care.  That page says nothing, just gives a description of the parts.

I've replaced the main plate a couple of times and re-run gearbox calibration and eventually all the calibration routines including the MMU3 feed sensor.  I'm still getting the error screen after every print.  No prints have failed at all and the machine is running very well - apart form ending the prints with the error screen!

Is there an error log anywhere?  I seem to remember the Mk3 having one but I haven't found the Mk4 one yet.

Posted : 27/05/2024 12:25 pm
Yasar
(@yasar)
Eminent Member
RE: Printer reporting multiple errors after print but it prints fine?

I have the same error, I also took everything apart, there were a few thread remains in the nextruder... cleaned it, still the error.... MK$ --> Settings --> Hardware ---> MMU maintenance reset.... and now it continues...error is gone in INFO --> MMU statistics were 1000 filament discharges...

Posted : 30/05/2024 5:45 am
graemesmith1960
(@graemesmith1960)
Eminent Member
Topic starter answered:
RE: Printer reporting multiple errors after print but it prints fine?

Thanks.  I think mine was dirty Finda in the end.  I'd forgotten about the maintenance reset though!

Posted : 30/05/2024 7:43 am
graemesmith1960
(@graemesmith1960)
Eminent Member
Topic starter answered:
RE: Printer reporting multiple errors after print but it prints fine?

I should also have mentioned that in my version of the Firmware (6.0.1) it's now called Nextruder Maintenance Reminder.

Posted : 30/05/2024 7:59 am
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